This article presents the findings of a large scale study that tested a comprehensive model of predictors of three manifestations of sustainability: continuation, institutionalization, and duration. Based on the literature the predictors were arrayed in four groups: variables pertaining to the project, the auspice organization, the community, and the main funder. The total sample consisted of 197 projects. Informants were asked to fill out a detailed questionnaire, pertaining to the predictor and outcome variables. The findings show both a different model of predictors for each manifestation of sustainability and commonalities among them. Both financial and human factors were involved in all the manifestations of sustainability. Of the financial factors, diversity of funding sources was the most prominent. Of the human factors, the findings highlight the strong role played by the auspice organization's management and by the main initial funder. (Contains 1 figure and 6 tables.)